Senior Data Scientist, Ads
Join Reddit as a Senior Data Scientist to enhance our advertising platform through data-driven insights and collaboration.
Posted by employer 1 month ago
First seen on Joblaze 1 month ago
Last verified on the company career page 13 hours ago
Skills & Technologies
Requirements
- Experience
- 5+ years
- Education
- Master's degree
Not disclosed in this posting: visa sponsorship.
Benefits
Joblaze summary
In this role, the Senior Data Scientist will focus on enhancing Reddit's advertising platform by developing and applying advanced data science models to drive advertiser engagement and performance. Key skills include expertise in machine learning, statistical modeling, and large-scale data analysis, with proficiency in tools like Python and SQL. This position is ideal for experienced professionals with a strong background in data science and a passion for online advertising. The Ads Data Science team is collaborative and innovative, aiming to leverage data to create a unique advertising experience.
Joblaze insights
- Listed about a month ago — first seen on Joblaze August 13, 2026. Last confirmed on Reddit's careers page October 10, 2026.
- Salary band is above the typical range for Data Science roles (median ~$170,800).
- Starts above 65% of 62 comparable senior data science roles in United States that list Python we track (median $174,500 across 39 companies). See Python salary trends
- Python appears in 70.1% of 117 comparable senior data science roles in United States; Hadoop appears in 0.9% of 117 comparable senior data science roles in United States.
Quick facts
- Is the Senior Data Scientist, Ads role remote?
- Yes — Reddit lists this as a fully remote position.
- What's the salary range?
- Reddit lists $190,800–$267,100 for this role.
- How much experience is required?
- At least 5 years of relevant experience for this Senior Data Scientist, Ads role.
- What's the tech stack?
- Joblaze extracted these technologies from the posting: BigQuery, Hadoop, Hive, PyTorch, Python, R.
- What seniority level is this role?
- Reddit targets senior candidates for this position.
- Is this full-time or contract?
- Full-time for this Senior Data Scientist, Ads role at Reddit.
From the original posting
Location: US remote-friendly
Reddit has a flexible first workforce. At Reddit we continue to grow our teams with the best talent. We're completely remote friendly and will continue to be after the pandemic.
Advertising is Reddit’s primary revenue driver and we have an ambitious goal to turn it into a massive business. Although several large digital ad platforms already exist, advertisers are being increasingly drawn to Reddit because of our passionate communities. We believe our community-centric platform has created the opportunity for Reddit to build a highly differentiated ads business.
About the Ads Data Science Team:
The Ads Data Science team at Reddit leverages data to maximize advertiser value on Reddit through robust data foundations, metrics, and strategic insights generated through experimentation and cutting-edge DS methods.
We work on a wide range of challenging problems in the areas of ads and platform measurement, campaign and creative management, advertiser growth and retention, monetization, and the intersection of brand and community engagement. We are a highly collaborative team of passionate data scientists and engineers who are constantly pushing the boundaries of what's possible with machine learning and statistical modeling.
About the Role:
We are looking for a highly motivated and experienced Senior Data Scientist to join our growing Ads Data Science team. As a Senior Data Scientist, you will play a key role in developing as well as applying cutting-edge DS models/methods to improve the adoption and performance of our advertising platform through data-driven insights. You will work closely with product managers, engineers, and other data scientists to identify opportunities, define metrics, and build solutions that drive significant impact for Reddit.
Responsibilities:
- Design, develop, and apply DS solutions to inform improvements in advertiser experience and Reddit's ad platform
- Analyze large-scale datasets to identify trends, patterns, and insights that can be used to improve the effectiveness of our advertising platform
- Collaborate with product managers and engineers to define product requirements and translate them into data science solutions
- Develop ML models & DS methods to improve anomaly detection, prediction, & pattern recognition
- Communicate findings and recommendations to stakeholders across the organization
- Stay up-to-date on the latest advancements in machine learning and data science
- Mentor and guide junior data scientists on the team
Qualifications:
- Advanced degree (Masters or Ph.D.) in a quantitative field such as: Statistics, Mathematics, Physics, Economics, or Operations Research
- For M.S. holders: 5+ years of industry experience in applied science or data science roles
- For Ph.D. holders: 4+ years of industry experience in applied science or data science roles
- Platform experience and a deep understanding of the ads ecosystem
- Strong understanding of statistical modeling, machine learning algorithms, causal inference and experimental design
- Experience with large-scale data processing and analysis using tools such as Spark, Hadoop, or Hive; knowledge of BigQuery a plus
- Proficiency in Python or R and experience with machine learning libraries such as scikit-learn, TensorFlow, or PyTorch
- Experience with SQL and relational databases
- Excellent communication and presentation skills
- Passion for Reddit and the online advertising industry
Bonus Points:
- Experience with online advertising and ad tech
- Experience with causal inference and A/B testing
- Contributions to open-source projects or publications in relevant conferences or journals
Benefits:
- Comprehensive Healthcare Benefits and Income Replacement Programs
- 401k with Employer Match
- Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
- Family Planning Support
- Gender-Affirming Care
- Mental Health & Coaching Benefits
- Flexible Vacation & Paid Volunteer Time Off
- Generous Paid Parental Leave
#LI-Remote
Pay Transparency:
In select roles and locations, the interviews will be recorded, transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews.
Standard company text repeated across Reddit's postings is omitted here.